1.

A 16.0-m length of hose is wound around a reel, which is initially at rest. The moment of inertia of the reel is 0.320 kg-m2, and its radius is 0.190 m. When turning. friction at the axle exerts a torque of magnitude 3.40 him on the reel. If the hose is pulled so that the tension in it remains a constant 2?.0 N, how long does it take to completely unwind the hose from the reel? Neglect the mass of the hose, and assu me that the hose u nwinds without slipping. The crane shown in the gure is lifting a 368-kg crate upward with an acceleration of 2.81 mfs2. The cable from the crate passes over a solid cylindrical pulley at the top of the boom. The pulley has a mass of 115 kg. The cable is then wound onto a hollow cylindrical drum that is mounted on the deck of the crane. The mass of the drum is 1?1 kg, and its radius {the same as that of the pulley} is 0.330 rn. The engine applies a counterclockwise torque to the drum in order to wind up the cable. What is the magnitude of this torque? Ignore the mass of the cable